The Clan McLea/Livingstone Forum

"Beinn Leamhaid" as shown on Google is actually a mis-spelling of "Beinn Leamhain" (if you plug in the given coordinates from the "Butterfly Monitoring" web page, you will find it located about 10 miles to the northeast of the Isle of Lismore - possibly within the boundaries of the parish itself), It is pronounced "LEV-in" and translates as "Peak of Levin" or "peak of (the) elm". "Leaba" or "leabaid" is "a bed", but I'm not sure if this is equivalent to what you found in the "Book of Lismore" (which should be distinguished from the "Book of the Dean of Lismore", the first being an 11th Century Irish text, and the second being a 16th Century Scottish text).